新型混合柔性铰链柔度研究

发布时间：2018-04-25 04:07

本文选题：双曲线直圆混合柔性铰链 + 柔度　；参考：《红外与激光工程》2016年10期

【摘要】：提出了一种新型双曲线直圆混合柔性铰链。利用卡氏第二定理推导出双曲线直圆混合柔性铰链的柔度计算公式,并根据所推导的公式,分析了直圆半径、最小厚度和切割深度对其柔度的影响。同时采用实体单元建立双曲线直圆混合柔性铰链的有限元模型,对不同几何参数的铰链进行仿真分析,并对仿真解与解析解进行对比。结果表明:仿真解与解析解的最大误差在8%以内,证明了所推导公式的正确性;与不同形状的柔性铰链对比得出,双曲线直圆混合柔性铰链具有更好的转动能力和对载荷较高的敏感性。所设计的新型双曲线直圆混合柔性铰链更适用于快速反射镜支撑结构中,同时也为混合型柔性铰链的设计和优化提供了理论依据。
[Abstract]:A new hyperbolic circular hybrid flexure hinge is proposed. By using the second theorem of Cartesian, the formulas for calculating the flexibility of hyperbolic circular hybrid flexure hinge are derived, and the effects of radius of straight circle, minimum thickness and cutting depth on the flexibility of the flexure hinge are analyzed. At the same time, the finite element model of hyperbolic circular hybrid flexure hinge is established by using solid element. The hinge with different geometric parameters is simulated and analyzed, and the simulation solution is compared with the analytical solution. The results show that the maximum error between the simulation solution and the analytical solution is less than 8%, which proves the correctness of the derived formula, and is compared with the flexure hinge with different shapes. The hyperbolic circular hybrid flexure hinge has better rotation ability and higher sensitivity to load. The new hyperbolic circular hybrid flexure hinge is more suitable for the fast mirror supporting structure, and it also provides a theoretical basis for the design and optimization of the hybrid flexure hinge.
【作者单位】：中国科学院大学;中国科学院长春光学精密机械与物理研究所;中国科学院国家天文台长春人造卫星观测站;
【基金】：国家自然科学基金(11403064)
【分类号】：TH136

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